- #1
hyperion4
- 15
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I have some copper enamel wire, winded up into something of a circle/ellipse, with about 20 turns, and the purpose for it is to give me a decent magnetic field (which it does) using a DC source. The magnetic field is picked up by a hall effect sensor on a nearby circuit, which is connected to some LEDs, which in turn light up when the field is detected.
I'm stuck between 2 of Maxwell's equations which ought to describe my system:
1. Faraday's law of induction (only problem is that this describes a time-varying magnetic field, which can only come about from an AC source..right?)
2. Ampere-Maxwell law (or Ampere's circuital law. But this doesn't explain how the LED's are turned on..it just says an electric current will give me a magnetic field).
I'm thinking 2 best describes my system? Yes I get a magnetic field, and that is picked up by the sensor...but isn't Faraday's law of induction specifically meant for wireless power, ie, turning on light bulbs and the likes?
Thanks.
I'm stuck between 2 of Maxwell's equations which ought to describe my system:
1. Faraday's law of induction (only problem is that this describes a time-varying magnetic field, which can only come about from an AC source..right?)
2. Ampere-Maxwell law (or Ampere's circuital law. But this doesn't explain how the LED's are turned on..it just says an electric current will give me a magnetic field).
I'm thinking 2 best describes my system? Yes I get a magnetic field, and that is picked up by the sensor...but isn't Faraday's law of induction specifically meant for wireless power, ie, turning on light bulbs and the likes?
Thanks.